Java
Chilkat2 Java
EC2 Check Instance Status
See more Amazon EC2 Examples
Demonstrates how to send a request to check the status of Amazon EC2 instances.Chilkat Java Downloads
import com.chilkatsoft.chilkat2.AuthAws;
import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Rest;
import com.chilkatsoft.chilkat2.Xml;
public class ChilkatExample {
public static void main(String[] args) {
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
Rest rest = new Rest();
// Connect to the Amazon AWS server.
// such as https://ec2.amazonaws.com/
boolean bTls = true;
int port = 443;
boolean bAutoReconnect = true;
rest.connect("ec2.us-west-2.amazonaws.com", port, bTls, bAutoReconnect);
// Provide AWS credentials for the REST call.
AuthAws authAws = new AuthAws();
authAws.setAccessKey("AWS_ACCESS_KEY");
authAws.setSecretKey("AWS_SECRET_KEY");
// the region should match the region part of the domain passed to the REST connect method (above).
authAws.setRegion("us-west-2");
authAws.setServiceName("ec2");
rest.setAuthAws(authAws);
rest.addQueryParam("Action", "DescribeInstanceStatus");
rest.addQueryParam("Version", "2016-11-15");
rest.addQueryParam("InstanceId.1", "i-999719995399c9999");
// If you have additional instances to check, then add them with .2, .3, etc.
rest.addQueryParam("InstanceId.2", "i-999719995399c0000");
rest.addQueryParam("InstanceId.3", "i-999719995399c0111");
// ...
// Instead of checking specific instances, you can check all instances by
// sending the IncludeAllInstances param
rest.addQueryParam("IncludeAllInstances", "true");
String responseXml;
try {
responseXml = rest.fullRequestNoBody("GET", "/");
} catch (ChilkatException e) {
System.out.println(e.getLastErrorText());
return;
}
// A successful response will have a status code equal to 200.
if (rest.getResponseStatusCode() != 200) {
System.out.println("response status code = " + rest.getResponseStatusCode());
System.out.println("response status text = " + rest.getResponseStatusText());
System.out.println("response header: " + rest.getResponseHeader());
System.out.println("response body: " + responseXml);
return;
}
// Examine the successful XML response.
Xml xml = new Xml();
xml.loadXml(responseXml);
System.out.println(xml.getXml());
// Here is a sample response:
// Use this online tool to generate parsing code from sample XML:
// Generate Parsing Code from XML
// <DescribeInstanceStatusResponse xmlns="http://ec2.amazonaws.com/doc/2016-11-15/">
// <requestId>3be1508e-c444-4fef-89cc-0b1223c4f02fEXAMPLE</requestId>
// <instanceStatusSet>
// <item>
// <instanceId>i-1234567890abcdef0</instanceId>
// <availabilityZone>us-east-1d</availabilityZone>
// <instanceState>
// <code>16</code>
// <name>running</name>
// </instanceState>
// <systemStatus>
// <status>impaired</status>
// <details>
// <item>
// <name>reachability</name>
// <status>failed</status>
// <impairedSince>YYYY-MM-DDTHH:MM:SS.000Z</impairedSince>
// </item>
// </details>
// </systemStatus>
// <instanceStatus>
// <status>impaired</status>
// <details>
// <item>
// <name>reachability</name>
// <status>failed</status>
// <impairedSince>YYYY-MM-DDTHH:MM:SS.000Z</impairedSince>
// </item>
// </details>
// </instanceStatus>
// <eventsSet>
// <item>
// <code>instance-retirement</code>
// <description>The instance is running on degraded hardware</description>
// <notBefore>YYYY-MM-DDTHH:MM:SS+0000</notBefore>
// <notAfter>YYYY-MM-DDTHH:MM:SS+0000</notAfter>
// </item>
// </eventsSet>
// </item>
// <item>
// <instanceId>i-0598c7d356eba48d7</instanceId>
// <availabilityZone>us-east-1d</availabilityZone>
// <instanceState>
// <code>16</code>
// <name>running</name>
// </instanceState>
// <systemStatus>
// <status>ok</status>
// <details>
// <item>
// <name>reachability</name>
// <status>passed</status>
// </item>
// </details>
// </systemStatus>
// <instanceStatus>
// <status>ok</status>
// <details>
// <item>
// <name>reachability</name>
// <status>passed</status>
// </item>
// </details>
// </instanceStatus>
// <eventsSet>
// <item>
// <code>instance-reboot</code>
// <description>The instance is scheduled for a reboot</description>
// <notBefore>YYYY-MM-DDTHH:MM:SS+0000</notBefore>
// <notAfter>YYYY-MM-DDTHH:MM:SS+0000</notAfter>
// </item>
// </eventsSet>
// </item>
// <item>
// <instanceId>i-0987654321abcdef0</instanceId>
// <availabilityZone>us-east-1d</availabilityZone>
// <instanceState>
// <code>16</code>
// <name>running</name>
// </instanceState>
// <systemStatus>
// <status>ok</status>
// <details>
// <item>
// <name>reachability</name>
// <status>passed</status>
// </item>
// </details>
// </systemStatus>
// <instanceStatus>
// <status>ok</status>
// <details>
// <item>
// <name>reachability</name>
// <status>passed</status>
// </item>
// </details>
// </instanceStatus>
// </item>
// <item>
// <instanceId>i-0598c7d356eba48d8</instanceId>
// <availabilityZone>us-east-1d</availabilityZone>
// <instanceState>
// <code>16</code>
// <name>running</name>
// </instanceState>
// <systemStatus>
// <status>ok</status>
// <details>
// <item>
// <name>reachability</name>
// <status>passed</status>
// </item>
// </details>
// </systemStatus>
// <instanceStatus>
// <status>insufficient-data</status>
// <details>
// <item>
// <name>reachability</name>
// <status>insufficient-data</status>
// </item>
// </details>
// </instanceStatus>
// </item>
// </instanceStatusSet>
// </DescribeInstanceStatusResponse>
}
}